1 november 2013 “shipping today, more efficient & cleaner” the royal institution of naval...

1

November 2013

The Royal Institution of Naval Architects ‘13 President's Invitation Lecture

“Shipping today, more Efficient & Cleaner”

2

• Francesco Bellusci

• Managing Director of Scorpio Ship Management s.a.m.

• SSM is the technical arm of Scorpio Group responsible for ships in operation, new buildings and new projects.

About the Speaker

Invitation Lecture | November 2013

3 About Scorpio Group


Global Footprint

(NBs orders concentrated in 1 year time, figures are ever changing)

• 27 tankers at sea

• Approximately 100 tankers ordered

• Approximately 50 dry bulkers ordered

• Control of larger number of vessels through the commercial pools

NBs orders concentrated in 1 year time, figures are ever changing

4 Scorpio’s Key Strength


Half a century of presence in shipping

Interpretation of market opportunities post crisis

Use of solid financial instrument

Strong management commitment driven by passion

Robust industrial plan

5 Key Sections of Discussion


I. Market Situation

II.Shipping opportunities for a more efficient and cleaner environment

6

• Financial players

• High Freight/Fuel cost ratio

• Weak emission regulatory framework

• A small propeller coupled with higher speed engine fit the purpose

• No scope for naval architect’s intervention

I. Market Situation : Historical


7

• Finance became selective with interest in solid industrial plans only

• Low Freight/Fuel cost ratio

• Strong emission regulatory framework (EEDI, EEOI, ECA, Tier III, SEEMP, MBI knocking at door)

• Reduced consumption/emission matters

• Variety of opportunities for naval architects

I. Market Situation : Current


8 Key Sections of Discussion


I. Market Situation

II.Shipping opportunities: For a more efficient and cleaner environment

9

• New building costs collapsed at 2002 price level

• New building yards open to discuss radical changes to specification

• Investment in fuel efficiency; a necessity for survival and a regulatory requirement, hence cleaner solutions became an opportunity

II. Shipping opportunities: Overview


10 II. Shipping Opportunities: Eco Benefit


• Low cost• Higher Revenue• Lower Opex• Stakeholder’s preference for lower emissions

11 II. Shipping opportunities: Eco Ship Differentiators


1. Fuel efficiency

2. Energy management

12 II. Shipping opportunities: Eco Ship -> Fuel Efficiency


Hull form

Propeller

Main engine

Hull roughness

Fuel efficiency devices



Hull form

Propeller

Main engine

Hull roughness


• Reconsideration of main dimensions and service profile

• Service speed, block coefficient, bulbous bow

• LCB position/form factor, wave resistance, wake fraction



Hull form

Propeller

Main engine

Hull roughness


Rw/Rt % decreases → entrance angle increases, bow volume increases, Lcb moves forward, lower friction resistance, better wake field aft



Hull form

Propeller

Main engine

Hull roughness


Va = Vsx (1-w)

Lower and stable wake fraction positively influences propeller efficiency and reduce noise and vibration



Hull form

Propeller

Main engine

Hull roughness


• Higher diameter→ higher efficiency

• Ae/Ao, improved cavitation design moving out from standard wing profiles

• Tip rake or winglet for limiting the tip vortex effect

• Modification of radial pitch/area distribution (skew, 3 blades)



Hull form

Propeller

Main engine

Hull roughness


Better distribution of areas where ↑ efficiency increases

Tip rake on pressure side →

Wing profile fine tuned for improved ← cavitation



Hull form

Propeller

Main engine

Hull roughness


Moving along constant ship speed curve toward lower revs/higher propeller D, the power requirements decreases due to overall higher efficiency of the propulsion system



Hull form

Propeller

Main engine

Hull roughness


• Balance between lower SFOC and lower revs

• Electronic control (injection timing and injection profile)

• Engine tuning (ECT, EGB, VTA) and type (gas engine/scrubber) depending by service profile and percentage in ECA



Hull form

Main Engine

Main engine

Hull roughness


Selection of proper engine tuning basis service profile including percentage in ballast as opposed to laden might improve SFOC by 5 g*kW/hr (3%)



Hull form

Propeller

Main engine

Hull roughness


• Silyl acrylate, Biocide free, Low friction post silyl acrylate

• Friction resistance account for 65% of total resistance for large low speed tankers

• Target reduction of hull roughness to below 50 microns and the maintenance of it through the 5 years service life



Hull form

Propeller

Main engine

Hull roughness


• Duct

• Pre/post swirl device

• Full spade rudder

• Rudder bulb

23 II. Shipping opportunities: Eco Ship -> Energy Management


• Ship/speed efficiency control

• Trim adjustment

• Frequency controllers

• Waste heat recovery

• Selection of highly efficient energy process

• Virtual arrival

• Weather routing

24 Overall Results and Conclusions


Global Footprint

(NBs orders concentrated in 1 year time, figures are ever changing)NBs orders concentrated in 1 year time, figures are ever changing

-16.38% -31.40% -22.38%

-15.50%

-29.39% -30.35%

-1.00

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

HMD MR SPP MR HMD new MR HMD HMAX 1A HSHI LR2 DSME LR2

STI prospective energy efficiency design index versus IMO required

Attained EEDI

Required EEDI

Saving %

Efficiency of Transportation

CO2 Emission Reduction

25 Overall Results and Conclusions


Global Footprint

(NBs orders concentrated in 1 year time, figures are ever changing)NBs orders concentrated in 1 year time, figures are ever changing

0.00

5.00

10.00

15.00

20.00

25.00

30.00

35.00

12.5 13 13,5 14 14,5 15

Design I 29.36 tons/day at14.5 knots incl 15%SMDesign II -10.50%

Design III -16.61%

Design IV -17.45%

Consumption comparison amongst MR

• EEDI limit

• Real fuel saving from a 2011 efficient design

26

www.scorpiogroup.net

20 20 (20% emission reduction by 2020) was considered

mission impossible

For Scorpio it is a job done

Thanks

1 november 2013 “shipping today, more efficient & cleaner” the royal institution of naval...

Documents

shipping opportunities

historical invitation

current invitation lecture

overview invitation

speaker invitation lecture

eco benefit invitation

propeller efficiency

eca slide